Bill's movements were extremely practiced, but Roman could not bring himself to be happy.
In the past few years, Bill had not developed any new potions. He only made potions according to the existing formula day after day. Although the quality of the finished products was excellent, this was not what Roman wanted.
Now that the new blood potion had spread throughout the world, there were more and more pharmacists who were familiar with the formula. Roman was not short of a producer who would follow the script. He had his eyes on Bill's innovation ability and wanted him to continue improving the blood potion, but so far, Bill had no new results.
Moreover, Bill had become more and more taciturn in the past few years and had interacted very little with him. Roman still remembered Bill's enthusiasm and conversationalism back then. The change now was quite abnormal.